*2026/01/16 09:57:53.31 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/12 23:05:40.000 END TIME : UTC 2024/08/12 23:05:52.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 61 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.13 2 Depth metres 0.15 18.1 3 Temperature 'deg C (ITS90)' 13.58 18.659 4 Conductivity S/m 2.91512 3.58708 5 Conductance:Specific S/m 3.3385 4.56599 6 Salinity PSS-78 20.81 29.16 7 Speed:Sound m/s 1494.94 1503.65 8 Density kg/m^3 1014.295 1021.787 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 189 LATITUDE : 49 8.57120 N ! (deg min) LONGITUDE : 125 40.71530 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240812_230540 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 61 61 MERGEHDR 1.3 2026/01/16 09:53:58 61 61 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:20 61 61 CALIB 12.1 2026/01/16 09:56:52 61 61 CLEAN 5.3 2026/01/16 09:57:53 61 61 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:08 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 09:57:46 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 18.659 2.91512 3.33850 20.81 1501.73 1014.295 0.45 0.45 18.516 2.92202 3.35742 20.94 1501.45 1014.425 0.75 0.75 18.509 2.94716 3.38681 21.14 1501.66 1014.581 1.05 1.06 18.509 3.01430 3.46397 21.67 1502.26 1014.986 1.35 1.36 18.444 3.05427 3.51521 22.02 1502.46 1015.270 1.65 1.66 18.380 3.08004 3.55007 22.26 1502.55 1015.468 1.95 1.96 18.047 3.24473 3.76886 23.77 1503.25 1016.694 2.25 2.26 17.308 3.47442 4.10610 26.11 1503.65 1018.645 2.55 2.56 16.780 3.58708 4.29284 27.40 1503.51 1019.755 2.85 2.86 16.310 3.57827 4.33101 27.65 1502.34 1020.050 3.15 3.16 15.690 3.55899 4.37329 27.92 1500.70 1020.389 3.45 3.46 15.126 3.54846 4.42169 28.23 1499.26 1020.748 3.75 3.76 14.852 3.53092 4.43007 28.27 1498.43 1020.838 4.05 4.06 14.579 3.51271 4.43761 28.31 1497.59 1020.923 4.35 4.36 14.407 3.50464 4.44669 28.36 1497.10 1021.000 4.65 4.66 14.227 3.50048 4.46178 28.45 1496.62 1021.110 4.95 4.96 14.070 3.49239 4.46946 28.50 1496.16 1021.176 5.25 5.26 13.964 3.48606 4.47345 28.52 1495.84 1021.214 5.55 5.55 13.909 3.48537 4.47882 28.55 1495.70 1021.253 5.85 5.85 13.853 3.48717 4.48767 28.61 1495.59 1021.310 6.15 6.15 13.798 3.48752 4.49445 28.65 1495.46 1021.356 6.45 6.45 13.772 3.48794 4.49804 28.68 1495.41 1021.381 6.75 6.75 13.754 3.48765 4.49970 28.69 1495.37 1021.393 7.05 7.05 13.723 3.48603 4.50126 28.69 1495.28 1021.407 7.35 7.35 13.692 3.48479 4.50324 28.71 1495.19 1021.424 7.65 7.65 13.665 3.48323 4.50437 28.71 1495.12 1021.435 7.95 7.95 13.639 3.48483 4.50946 28.75 1495.07 1021.468 8.25 8.25 13.620 3.48458 4.51134 28.76 1495.03 1021.482 8.55 8.55 13.598 3.48327 4.51228 28.76 1494.97 1021.491 8.85 8.85 13.586 3.48329 4.51365 28.77 1494.94 1021.501 9.15 9.15 13.583 3.48628 4.51789 28.80 1494.97 1021.526 9.45 9.45 13.584 3.48626 4.51776 28.80 1494.98 1021.527 9.75 9.75 13.591 3.49049 4.52241 28.83 1495.05 1021.552 10.05 10.05 13.590 3.49084 4.52294 28.84 1495.05 1021.557 10.35 10.35 13.586 3.49140 4.52420 28.85 1495.05 1021.565 10.65 10.64 13.582 3.49256 4.52615 28.86 1495.06 1021.578 10.95 10.94 13.580 3.49456 4.52900 28.88 1495.08 1021.595 11.25 11.24 13.581 3.49579 4.53043 28.89 1495.10 1021.604 11.55 11.54 13.587 3.49716 4.53151 28.90 1495.14 1021.610 11.85 11.84 13.597 3.49866 4.53232 28.90 1495.18 1021.615 12.15 12.14 13.603 3.49979 4.53304 28.91 1495.22 1021.619 12.45 12.44 13.614 3.50235 4.53513 28.92 1495.27 1021.630 12.75 12.74 13.622 3.50481 4.53728 28.94 1495.33 1021.642 13.05 13.04 13.639 3.50744 4.53877 28.95 1495.40 1021.649 13.35 13.34 13.656 3.51078 4.54101 28.97 1495.48 1021.660 13.65 13.64 13.679 3.51553 4.54452 29.00 1495.59 1021.677 13.95 13.94 13.713 3.52028 4.54667 29.01 1495.73 1021.686 14.25 14.24 13.733 3.52548 4.55099 29.04 1495.84 1021.708 14.55 14.54 13.746 3.52822 4.55297 29.06 1495.91 1021.718 14.85 14.84 13.764 3.53032 4.55364 29.07 1495.98 1021.721 15.15 15.13 13.778 3.53151 4.55352 29.07 1496.03 1021.719 15.45 15.43 13.793 3.53213 4.55258 29.06 1496.08 1021.713 15.75 15.73 13.805 3.53414 4.55375 29.07 1496.13 1021.719 16.05 16.03 13.815 3.53720 4.55647 29.09 1496.20 1021.734 16.35 16.33 13.814 3.54051 4.56084 29.12 1496.23 1021.759 16.65 16.63 13.824 3.54224 4.56190 29.13 1496.28 1021.765 16.95 16.93 13.843 3.54270 4.56026 29.12 1496.34 1021.754 17.25 17.23 13.858 3.54306 4.55895 29.11 1496.38 1021.746 17.55 17.53 13.858 3.54342 4.55940 29.11 1496.39 1021.750 17.85 17.83 13.862 3.54727 4.56397 29.15 1496.45 1021.776 18.13 18.10 13.872 3.54981 4.56599 29.16 1496.50 1021.787